A string containing a pattern to be matched against command names, supporting * and ? wildcard characters. When this parameter is not specified, the default is *, to include all command names.
A list showing the syntax of the first command that matches the pattern, formatted as:
(aproposSyntax (command [parameter ...]))
on success, otherwise (error).
This command gives the syntax description string (if any) associated with the first command matching the pattern.
Hist> (aproposSyntax f*)
(aproposSyntax (filebase point directory basename extension [digits]))